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80142104 = 2377691861
BaseRepresentation
bin1001100011011…
…01111100011000
312120210122022002
410301231330120
5131004021404
611541420132
71662124310
oct461557430
9176718262
1080142104
1141268a49
1222a0a648
13137acc83
14a902440
157080c1e
hex4c6df18

80142104 has 32 divisors (see below), whose sum is σ = 172048800. Its totient is φ = 34283520.

The previous prime is 80142071. The next prime is 80142107. The reversal of 80142104 is 40124108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80142107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42134 + ... + 43994.

It is an arithmetic number, because the mean of its divisors is an integer number (5376525).

Almost surely, 280142104 is an apocalyptic number.

It is an amenable number.

80142104 is an abundant number, since it is smaller than the sum of its proper divisors (91906696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80142104 is a wasteful number, since it uses less digits than its factorization.

80142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2639 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 80142104 is about 8952.2122405582. The cubic root of 80142104 is about 431.1419152499.

The spelling of 80142104 in words is "eighty million, one hundred forty-two thousand, one hundred four".

Divisors: 1 2 4 7 8 14 28 56 769 1538 1861 3076 3722 5383 6152 7444 10766 13027 14888 21532 26054 43064 52108 104216 1431109 2862218 5724436 10017763 11448872 20035526 40071052 80142104